FIX: Referencing This.Value in Editbox Refresh Causes Error

MORE INFORMATION

Steps to Reproduce Behavior

1. Create a program that contains the following code, and then run the program:

         CLOSE ALL
   
         CREATE CURSOR Test (Field1 M, Field2 C(12), Key N(2))
         INSERT INTO Test (Field1, Field2, Key) VALUES ;
            ("This is some text.","More", 1)
         INSERT INTO Test (Field1, Field2, Key) VALUES ("", "Other", 2)
         CREATE DATABASE Test
         CREATE SQL VIEW "TestView" AS SELECT * FROM Test WHERE Key = ?m.Key
   
         Key = 1
         USE TestView
   
         PUBLIC ox
         ox=CREATEOBJECT("frmTest")
         ox.Visible = .T.
   
         RETURN
   
   
         DEFINE CLASS FrmTest AS FORM
            ADD OBJECT edtField1 AS edtField1
            ADD OBJECT txtField2 AS txtField2
            ADD OBJECT cmdButton AS cmdButton
            ADD OBJECT chkRef AS chkRef
   
         ENDDEFINE
   
         DEFINE CLASS chkRef AS CheckBox
            Top = 190
            Width = 200
            Left = 20
            Caption = "Refer to the Value in the Refresh"
            Value = .F.
         ENDDEFINE
   
         DEFINE CLASS cmdButton AS CommandButton
            Top = 20
            Height = 30
            Left = 200
            Caption = "Another Record"
            PROCEDURE Click
               Key = TestView.Key + 1
               IF m.Key > RECCOUNT("Test")
                  Key = 1
               ENDIF
               =REQUERY("TestView")
               THISFORM.Refresh()
               RETURN
           ENDPROC
   
         ENDDEFINE
   
         DEFINE CLASS txtField2 AS TextBox
            Top = 20
            Height = 30
            Left = 20
            ControlSource = "TestView.Field2"
         ENDDEFINE
   
         DEFINE CLASS edtField1 AS EditBox
            Top = 100
            Left = 20
            ControlSource = "TestView.Field1"
   
            PROCEDURE Refresh
               IF THISFORM.chkRef.Value
                  WAIT WINDOW THIS.Value NOWAIT
               ENDIF
               RETURN
            ENDPROC
   
         ENDDEFINE
   							

2. When the form appears, click the check box and then press the command button. The error message appears.